The Aima Big Sur U is a utility-focused electric bike built for everyday transportation, cargo hauling, and confident commuting. It features a 750W rear hub motor from BAFANG with up to 1200W peak power, throttle on demand, and five levels of pedal assist for flexible riding up to 20 mph. A removable 48V 15Ah battery delivers an estimated range of 30 to 60 miles, while UL 2849 certification ensures electrical safety and reliability. Designed for stability and comfort, the Big Sur U includes hydraulic disc brakes with large rotors, integrated lighting with turn signals and horn, front suspension, and a durable aluminum frame with a 400 lb payload capacity, making it a dependable choice for daily utility riding.
**Two-Year Warranty**
Technical Specifications:
MOTOR
Rear Hub Motor, BAFANG, 750W
Peak Power: 1200W | Max Torque: 85Nm
THROTTLE
Throttle on Demand
DISPLAY
BAFANG E-system TFT DisplaySmart Function FindMy, Navigation, Calls, Notifications
CERTIFICATION
UL2849 Compliant
SPEED
20 MPH
BATTERY
Removeable Internal Lithium-Ion, 48V, 15Ah (720Wh)
LIGHTING
Integrated Headlight, Tail Lights, and Turn Signals w/Horn
PEDAL SENSOR
Customizable w/Torque & Cadence Modes
PEDAL ASSIST
5 PAS Levels
CHARGER
48V, 3 Amp Fast Charger, 5 Hours to a Full Charge
RANGE
30-60 miles
FRAME
6061 Single-Butted Aluminum Alloy Frame
WEIGHT
80lbs
PEDALS
9/16" Alloy Platform
FORK
ZOOM Suspension Fork, 80mm Travel, Adjustable Preload, Lockout
PAYLOAD CAPACITY
400lbs
KICKSTAND
Aluminum Alloy Kickstand
CRANKSET
160mm w/ 52T Chainring
SHIFTER
Shimano 7 Speed
DERAILLEUR
Shimano 7 Speed
CASSETTE
7 Speed, 11-28T
BRAKES
Tektro Hydraulic Disc Brakes, 203 mm Rotors
CHAIN
7 Speed
RIMS
Double Wall Aluminum Alloy
SPOKES
Black Stainless 12G Front / 12G Rear
TUBES
Butyl Rubber
FRONT HUB
Aluminum Alloy Disc
TIRES
20" x 3.5"
SADDLE
AIMA Comfort Saddle
SEATPOST
Aluminum Alloy, 30.9mm 2-Bolt Clamp, 300mm
STEM
Threadless, 31.8mm, 30° Rise, 50mm Length
SEAT CLAMP
34.9mm Quick Release
HANDLEBARS
Aluminum Alloy Double Wall, 31.8mm, 680mm
HEADSET
Sealed Bearing Headset
GRIPS
Ergonomic Comfort
